Railway-sleeper.



O. E. WETZER.

RAILWAY SLEEPER.

APPLIOATION FILED MAY ze. 1913.

2 SHEETS-BHEIIT 1.

1,075,616. Patented 0t.14,1913.

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0. E. WETZBR.

RAILWAY SLEEPER.

APPLICATION FILED MAY ze, 1913.

1,975,616, Patented 0013.14, 1913.

2 SHEETS-SHEET 2.

my ab'.

9; I @Mar r/w Weg@ UNITE@ PATENT FFICE.

OSKAR ERNST WETZER, 0F HERSBRUCK, GERMANY.

RAILWAYSLEEPER.

jl,075,6l6.

To all whom t may concern Be it known that I, Oskar ERNST "WETZER, asubject of the Emperor of Germany, and resident at Hersbruck, Germany,have invented certain new and useful Improvements Relating toRailway-Sleepers.

This invention relates to reinforced concrete sleepers for railways orpermanent ways and the characteristic feature of my improved sleeperresides in the fact, that 1t has in the Zone of tension a U-shaped or anl-l-shaped iron between the flanges of which the heads of the fasteningbolts for the rails engage and that by reason of the direct connectionbetween the said iron and the rails unintentional loosening of thelatter can occur only through the breaking of the bolts.

By the present invention the ordinary objections to concrete sleepersare oveicome and a connection between the sleeper and rail is providedwhich will not necessitate any alteration in the ordinary small ironworkor other auxiliary parts such as woodblocks and so forth for use infixing the rails.

'Ihe invention is shown in the accompanying` drawings, in which Figure lis a longitudinal section of a portion of the sleeper. Fig. 2 is acorresponding plan. Fig. 3 is a cross-section of the same. Fig. 4 is aperspective view of the central reinforcing and connecting bar. Figs. 5to 8 show a modified arrangement, in which: Fig. 5 is a longitudinalsection, Fig. 6 is a plan, and Fig. '7 is a cross-section of thesleeper, Fig. 8 is a perspective view of the central reinforcement.

Like reference letters parts in all the figures.

Referring first to the Figs. l to 4, the concrete sleeper a has in itsupper portion re inforcing rods for counteracting compression. In thetension zone it is provided with a reinforcing bar c of U-shaped orl-l-shaped cross-section. To prevent the lower edges of the sleeper frombeing easily damaged reinforcing rods e are inserted which are furdenotesimil ar Specification of Letters Patent.

Application filed May 26, 1913.

Patented Oct. le, 1913.

Serial No. 769,968.

nished with wire teeth l which insure greater retaining capacity. Therods e are at intervals connected with the bar c by transverse loops z'.The bar c has oblong holes in position where the rails are laid, saidholes passing through the thickness of the sleeper and allowing thepositioning of the fastening bolts for the rails. The heads of thefastening bolts are squared so as to fit between the flanges of the baro and allow them to be fixed by means of a screw-nut without the boltsturning.

Referring now to th-e modification shown in Figs. 5 8, provision is heremade for fixing the rails by means of three bolts of which one is on theouter side of the rails, while two are at the inner side of the rails.For this purpose the bar c, which here has an oblong hole f for thefastening bolt at the inner side of the rail, carries yoke plates /Lhaving flanges g and oblong holes f, said plate being fixed to the bar cin such a position as to have the said two holes f along the inner sideof the rail.

I claim:

A railway cross tie comprising in combination a concrete member providedwith recesses therein, a plurality of series of rein forcing membersembedded in said concrete and following the cont-our thereon, one ofsaid series being at the upper edge of said tie, the other of saidseries being at the lower edge of said tie, the lower series having wirespikes thereon, a relatively heavier bar at the lower portion of saidtie and provided with apertures registering with the recesses in the tieto receive the rail bolts, and wire loops connecting said bar and saidlower reinforcing member.

In testimony whereof I have set hereunto my hand in presence of twowitnesses.

OSKAR ERNST VVETZER.

lVitnesses OSCAR BooK, RALPH. W. DoX.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

